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Finding the Fourth Proportional to 92,881.52, 128,176.98 and 52,603.11

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Solution

The fourth proportional to 92,881.52, 128,176.98 and 52,603.11 is: 72,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,881.52 : 128,176.98 = 52,603.11 : x
  2. Step 2: Convert to fraction form
    92,881.52/128,176.98 = 52,603.11/x
  3. Step 3: Cross multiply
    92,881.52x = 128,176.98 × 52,603.11
  4. Step 4: Simplify right side
    92,881.52x = 6,742,507,778.41
  5. Step 5: Solve for x
    x = 6,742,507,778.41/92,881.52
  6. Step 6: Final answer
    x = 72,592.57

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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.