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Finding the Fourth Proportional to 103,372.64, 155,060.08 and 58,946.40

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Solution

The fourth proportional to 103,372.64, 155,060.08 and 58,946.40 is: 88,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,372.64 : 155,060.08 = 58,946.40 : x
  2. Step 2: Convert to fraction form
    103,372.64/155,060.08 = 58,946.40/x
  3. Step 3: Cross multiply
    103,372.64x = 155,060.08 × 58,946.40
  4. Step 4: Simplify right side
    103,372.64x = 9,140,233,499.71
  5. Step 5: Solve for x
    x = 9,140,233,499.71/103,372.64
  6. Step 6: Final answer
    x = 88,420.24

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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.