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Finding the Fourth Proportional to 111,812.80, 154,304.48 and 60,828.40

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Solution

The fourth proportional to 111,812.80, 154,304.48 and 60,828.40 is: 83,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,812.80 : 154,304.48 = 60,828.40 : x
  2. Step 2: Convert to fraction form
    111,812.80/154,304.48 = 60,828.40/x
  3. Step 3: Cross multiply
    111,812.80x = 154,304.48 × 60,828.40
  4. Step 4: Simplify right side
    111,812.80x = 9,386,094,631.23
  5. Step 5: Solve for x
    x = 9,386,094,631.23/111,812.80
  6. Step 6: Final answer
    x = 83,944.72

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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.