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Finding the Fourth Proportional to 351,565.70, 527,379.70 and 98,848.40

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Solution

The fourth proportional to 351,565.70, 527,379.70 and 98,848.40 is: 148,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,565.70 : 527,379.70 = 98,848.40 : x
  2. Step 2: Convert to fraction form
    351,565.70/527,379.70 = 98,848.40/x
  3. Step 3: Cross multiply
    351,565.70x = 527,379.70 × 98,848.40
  4. Step 4: Simplify right side
    351,565.70x = 52,130,639,537.48
  5. Step 5: Solve for x
    x = 52,130,639,537.48/351,565.70
  6. Step 6: Final answer
    x = 148,281.36

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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.