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Finding the Fourth Proportional to 111,148.38, 153,384.77 and 60,847.38

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Solution

The fourth proportional to 111,148.38, 153,384.77 and 60,847.38 is: 83,969.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,148.38 : 153,384.77 = 60,847.38 : x
  2. Step 2: Convert to fraction form
    111,148.38/153,384.77 = 60,847.38/x
  3. Step 3: Cross multiply
    111,148.38x = 153,384.77 × 60,847.38
  4. Step 4: Simplify right side
    111,148.38x = 9,333,061,386.40
  5. Step 5: Solve for x
    x = 9,333,061,386.40/111,148.38
  6. Step 6: Final answer
    x = 83,969.39

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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.