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Finding the Fourth Proportional to 371,652.48, 557,557.92 and 105,494.40

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Solution

The fourth proportional to 371,652.48, 557,557.92 and 105,494.40 is: 158,264.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,652.48 : 557,557.92 = 105,494.40 : x
  2. Step 2: Convert to fraction form
    371,652.48/557,557.92 = 105,494.40/x
  3. Step 3: Cross multiply
    371,652.48x = 557,557.92 × 105,494.40
  4. Step 4: Simplify right side
    371,652.48x = 58,819,238,235.65
  5. Step 5: Solve for x
    x = 58,819,238,235.65/371,652.48
  6. Step 6: Final answer
    x = 158,264.08

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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.