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Finding the Fourth Proportional to 70,248.88, 97,052.61 and 58,900.78

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Solution

The fourth proportional to 70,248.88, 97,052.61 and 58,900.78 is: 81,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,248.88 : 97,052.61 = 58,900.78 : x
  2. Step 2: Convert to fraction form
    70,248.88/97,052.61 = 58,900.78/x
  3. Step 3: Cross multiply
    70,248.88x = 97,052.61 × 58,900.78
  4. Step 4: Simplify right side
    70,248.88x = 5,716,474,430.04
  5. Step 5: Solve for x
    x = 5,716,474,430.04/70,248.88
  6. Step 6: Final answer
    x = 81,374.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.