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Finding the Fourth Proportional to 117,783.66, 162,545.76 and 65,397.11

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Solution

The fourth proportional to 117,783.66, 162,545.76 and 65,397.11 is: 90,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,783.66 : 162,545.76 = 65,397.11 : x
  2. Step 2: Convert to fraction form
    117,783.66/162,545.76 = 65,397.11/x
  3. Step 3: Cross multiply
    117,783.66x = 162,545.76 × 65,397.11
  4. Step 4: Simplify right side
    117,783.66x = 10,630,023,353.12
  5. Step 5: Solve for x
    x = 10,630,023,353.12/117,783.66
  6. Step 6: Final answer
    x = 90,250.41

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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.