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Finding the Fourth Proportional to 92,882.52, 128,210.58 and 55,156.50

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Solution

The fourth proportional to 92,882.52, 128,210.58 and 55,156.50 is: 76,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,882.52 : 128,210.58 = 55,156.50 : x
  2. Step 2: Convert to fraction form
    92,882.52/128,210.58 = 55,156.50/x
  3. Step 3: Cross multiply
    92,882.52x = 128,210.58 × 55,156.50
  4. Step 4: Simplify right side
    92,882.52x = 7,071,646,855.77
  5. Step 5: Solve for x
    x = 7,071,646,855.77/92,882.52
  6. Step 6: Final answer
    x = 76,135.39

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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.