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Finding the Fourth Proportional to 77,400.90, 116,101.35 and 46,296.90

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Solution

The fourth proportional to 77,400.90, 116,101.35 and 46,296.90 is: 69,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,400.90 : 116,101.35 = 46,296.90 : x
  2. Step 2: Convert to fraction form
    77,400.90/116,101.35 = 46,296.90/x
  3. Step 3: Cross multiply
    77,400.90x = 116,101.35 × 46,296.90
  4. Step 4: Simplify right side
    77,400.90x = 5,375,132,590.82
  5. Step 5: Solve for x
    x = 5,375,132,590.82/77,400.90
  6. Step 6: Final answer
    x = 69,445.35

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1.5x scale

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.