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Finding the Fourth Proportional to 424,032.39, 636,043.29 and 124,502.16

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Solution

The fourth proportional to 424,032.39, 636,043.29 and 124,502.16 is: 186,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,032.39 : 636,043.29 = 124,502.16 : x
  2. Step 2: Convert to fraction form
    424,032.39/636,043.29 = 124,502.16/x
  3. Step 3: Cross multiply
    424,032.39x = 636,043.29 × 124,502.16
  4. Step 4: Simplify right side
    424,032.39x = 79,188,763,458.51
  5. Step 5: Solve for x
    x = 79,188,763,458.51/424,032.39
  6. Step 6: Final answer
    x = 186,751.69

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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.