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Finding the Fourth Proportional to 58,981.60, 88,256.40 and 43,429.60

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Solution

The fourth proportional to 58,981.60, 88,256.40 and 43,429.60 is: 64,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,981.60 : 88,256.40 = 43,429.60 : x
  2. Step 2: Convert to fraction form
    58,981.60/88,256.40 = 43,429.60/x
  3. Step 3: Cross multiply
    58,981.60x = 88,256.40 × 43,429.60
  4. Step 4: Simplify right side
    58,981.60x = 3,832,940,149.44
  5. Step 5: Solve for x
    x = 3,832,940,149.44/58,981.60
  6. Step 6: Final answer
    x = 64,985.35

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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.