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Finding the Fourth Proportional to 111,275.86, 153,471.54 and 97,818.52

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Solution

The fourth proportional to 111,275.86, 153,471.54 and 97,818.52 is: 134,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,275.86 : 153,471.54 = 97,818.52 : x
  2. Step 2: Convert to fraction form
    111,275.86/153,471.54 = 97,818.52/x
  3. Step 3: Cross multiply
    111,275.86x = 153,471.54 × 97,818.52
  4. Step 4: Simplify right side
    111,275.86x = 15,012,358,904.92
  5. Step 5: Solve for x
    x = 15,012,358,904.92/111,275.86
  6. Step 6: Final answer
    x = 134,911.19

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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.