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Finding the Fourth Proportional to 117,901.90, 176,741.68 and 58,681.59

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Solution

The fourth proportional to 117,901.90, 176,741.68 and 58,681.59 is: 87,967.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,901.90 : 176,741.68 = 58,681.59 : x
  2. Step 2: Convert to fraction form
    117,901.90/176,741.68 = 58,681.59/x
  3. Step 3: Cross multiply
    117,901.90x = 176,741.68 × 58,681.59
  4. Step 4: Simplify right side
    117,901.90x = 10,371,482,801.67
  5. Step 5: Solve for x
    x = 10,371,482,801.67/117,901.90
  6. Step 6: Final answer
    x = 87,967.05

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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.