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Finding the Fourth Proportional to 370,987.11, 556,490.25 and 101,117.47

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Solution

The fourth proportional to 370,987.11, 556,490.25 and 101,117.47 is: 151,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,987.11 : 556,490.25 = 101,117.47 : x
  2. Step 2: Convert to fraction form
    370,987.11/556,490.25 = 101,117.47/x
  3. Step 3: Cross multiply
    370,987.11x = 556,490.25 × 101,117.47
  4. Step 4: Simplify right side
    370,987.11x = 56,270,884,768.44
  5. Step 5: Solve for x
    x = 56,270,884,768.44/370,987.11
  6. Step 6: Final answer
    x = 151,678.81

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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.