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Finding the Fourth Proportional to 111,275.96, 153,471.46 and 97,818.60

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Solution

The fourth proportional to 111,275.96, 153,471.46 and 97,818.60 is: 134,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,275.96 : 153,471.46 = 97,818.60 : x
  2. Step 2: Convert to fraction form
    111,275.96/153,471.46 = 97,818.60/x
  3. Step 3: Cross multiply
    111,275.96x = 153,471.46 × 97,818.60
  4. Step 4: Simplify right side
    111,275.96x = 15,012,363,357.16
  5. Step 5: Solve for x
    x = 15,012,363,357.16/111,275.96
  6. Step 6: Final answer
    x = 134,911.11

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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.