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Finding the Fourth Proportional to 111,119.76, 153,348.94 and 60,818.76

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Solution

The fourth proportional to 111,119.76, 153,348.94 and 60,818.76 is: 83,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,119.76 : 153,348.94 = 60,818.76 : x
  2. Step 2: Convert to fraction form
    111,119.76/153,348.94 = 60,818.76/x
  3. Step 3: Cross multiply
    111,119.76x = 153,348.94 × 60,818.76
  4. Step 4: Simplify right side
    111,119.76x = 9,326,492,378.11
  5. Step 5: Solve for x
    x = 9,326,492,378.11/111,119.76
  6. Step 6: Final answer
    x = 83,931.90

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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.