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Finding the Fourth Proportional to 58,784.60, 88,065.74 and 45,572.28

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Solution

The fourth proportional to 58,784.60, 88,065.74 and 45,572.28 is: 68,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,784.60 : 88,065.74 = 45,572.28 : x
  2. Step 2: Convert to fraction form
    58,784.60/88,065.74 = 45,572.28/x
  3. Step 3: Cross multiply
    58,784.60x = 88,065.74 × 45,572.28
  4. Step 4: Simplify right side
    58,784.60x = 4,013,356,561.69
  5. Step 5: Solve for x
    x = 4,013,356,561.69/58,784.60
  6. Step 6: Final answer
    x = 68,272.24

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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.