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Finding the Fourth Proportional to 518,543.08, 777,818.14 and 144,569.32

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Solution

The fourth proportional to 518,543.08, 777,818.14 and 144,569.32 is: 216,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,543.08 : 777,818.14 = 144,569.32 : x
  2. Step 2: Convert to fraction form
    518,543.08/777,818.14 = 144,569.32/x
  3. Step 3: Cross multiply
    518,543.08x = 777,818.14 × 144,569.32
  4. Step 4: Simplify right side
    518,543.08x = 112,448,639,583.47
  5. Step 5: Solve for x
    x = 112,448,639,583.47/518,543.08
  6. Step 6: Final answer
    x = 216,854.96

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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.