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Finding the Fourth Proportional to 111,557.54, 153,947.48 and 61,256.18

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Solution

The fourth proportional to 111,557.54, 153,947.48 and 61,256.18 is: 84,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,557.54 : 153,947.48 = 61,256.18 : x
  2. Step 2: Convert to fraction form
    111,557.54/153,947.48 = 61,256.18/x
  3. Step 3: Cross multiply
    111,557.54x = 153,947.48 × 61,256.18
  4. Step 4: Simplify right side
    111,557.54x = 9,430,234,545.43
  5. Step 5: Solve for x
    x = 9,430,234,545.43/111,557.54
  6. Step 6: Final answer
    x = 84,532.47

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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.