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Finding the Fourth Proportional to 366,781.12, 549,990.24 and 130,088.32

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Solution

The fourth proportional to 366,781.12, 549,990.24 and 130,088.32 is: 195,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,781.12 : 549,990.24 = 130,088.32 : x
  2. Step 2: Convert to fraction form
    366,781.12/549,990.24 = 130,088.32/x
  3. Step 3: Cross multiply
    366,781.12x = 549,990.24 × 130,088.32
  4. Step 4: Simplify right side
    366,781.12x = 71,547,306,338.00
  5. Step 5: Solve for x
    x = 71,547,306,338.00/366,781.12
  6. Step 6: Final answer
    x = 195,068.13

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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.