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Finding the Fourth Proportional to 92,931.71, 139,402.86 and 26,366.60

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Solution

The fourth proportional to 92,931.71, 139,402.86 and 26,366.60 is: 39,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,931.71 : 139,402.86 = 26,366.60 : x
  2. Step 2: Convert to fraction form
    92,931.71/139,402.86 = 26,366.60/x
  3. Step 3: Cross multiply
    92,931.71x = 139,402.86 × 26,366.60
  4. Step 4: Simplify right side
    92,931.71x = 3,675,578,751.46
  5. Step 5: Solve for x
    x = 3,675,578,751.46/92,931.71
  6. Step 6: Final answer
    x = 39,551.40

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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.