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Finding the Fourth Proportional to 58,981.77, 88,410.35 and 42,332.78

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Solution

The fourth proportional to 58,981.77, 88,410.35 and 42,332.78 is: 63,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,981.77 : 88,410.35 = 42,332.78 : x
  2. Step 2: Convert to fraction form
    58,981.77/88,410.35 = 42,332.78/x
  3. Step 3: Cross multiply
    58,981.77x = 88,410.35 × 42,332.78
  4. Step 4: Simplify right side
    58,981.77x = 3,742,655,242.56
  5. Step 5: Solve for x
    x = 3,742,655,242.56/58,981.77
  6. Step 6: Final answer
    x = 63,454.44

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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.