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Finding the Fourth Proportional to 136,904.80, 205,354.32 and 63,032.80

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Solution

The fourth proportional to 136,904.80, 205,354.32 and 63,032.80 is: 94,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,904.80 : 205,354.32 = 63,032.80 : x
  2. Step 2: Convert to fraction form
    136,904.80/205,354.32 = 63,032.80/x
  3. Step 3: Cross multiply
    136,904.80x = 205,354.32 × 63,032.80
  4. Step 4: Simplify right side
    136,904.80x = 12,944,057,781.70
  5. Step 5: Solve for x
    x = 12,944,057,781.70/136,904.80
  6. Step 6: Final answer
    x = 94,547.87

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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.