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Finding the Fourth Proportional to 82,901.76, 124,248.60 and 65,302.08

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Solution

The fourth proportional to 82,901.76, 124,248.60 and 65,302.08 is: 97,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,901.76 : 124,248.60 = 65,302.08 : x
  2. Step 2: Convert to fraction form
    82,901.76/124,248.60 = 65,302.08/x
  3. Step 3: Cross multiply
    82,901.76x = 124,248.60 × 65,302.08
  4. Step 4: Simplify right side
    82,901.76x = 8,113,692,017.09
  5. Step 5: Solve for x
    x = 8,113,692,017.09/82,901.76
  6. Step 6: Final answer
    x = 97,871.17

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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.