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Finding the Fourth Proportional to 92,882.25, 128,178 and 52,603.86

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Solution

The fourth proportional to 92,882.25, 128,178 and 52,603.86 is: 72,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,882.25 : 128,178 = 52,603.86 : x
  2. Step 2: Convert to fraction form
    92,882.25/128,178 = 52,603.86/x
  3. Step 3: Cross multiply
    92,882.25x = 128,178 × 52,603.86
  4. Step 4: Simplify right side
    92,882.25x = 6,742,657,567.08
  5. Step 5: Solve for x
    x = 6,742,657,567.08/92,882.25
  6. Step 6: Final answer
    x = 72,593.61

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1.5x scale

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.