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Finding the Fourth Proportional to 92,117.70, 138,176.55 and 57,077.10

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Solution

The fourth proportional to 92,117.70, 138,176.55 and 57,077.10 is: 85,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,117.70 : 138,176.55 = 57,077.10 : x
  2. Step 2: Convert to fraction form
    92,117.70/138,176.55 = 57,077.10/x
  3. Step 3: Cross multiply
    92,117.70x = 138,176.55 × 57,077.10
  4. Step 4: Simplify right side
    92,117.70x = 7,886,716,762.01
  5. Step 5: Solve for x
    x = 7,886,716,762.01/92,117.70
  6. Step 6: Final answer
    x = 85,615.65

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1.5x scale

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.