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Finding the Fourth Proportional to 549,378,001.90, 824,067,002.85 and 185,872,357.90

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Solution

The fourth proportional to 549,378,001.90, 824,067,002.85 and 185,872,357.90 is: 278,808,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,378,001.90 : 824,067,002.85 = 185,872,357.90 : x
  2. Step 2: Convert to fraction form
    549,378,001.90/824,067,002.85 = 185,872,357.90/x
  3. Step 3: Cross multiply
    549,378,001.90x = 824,067,002.85 × 185,872,357.90
  4. Step 4: Simplify right side
    549,378,001.90x = 153,171,276,887,315,520
  5. Step 5: Solve for x
    x = 153,171,276,887,315,520/549,378,001.90
  6. Step 6: Final answer
    x = 278,808,536.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.