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Finding the Fourth Proportional to 110,964, 153,130.86 and 60,663

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Solution

The fourth proportional to 110,964, 153,130.86 and 60,663 is: 83,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,964 : 153,130.86 = 60,663 : x
  2. Step 2: Convert to fraction form
    110,964/153,130.86 = 60,663/x
  3. Step 3: Cross multiply
    110,964x = 153,130.86 × 60,663
  4. Step 4: Simplify right side
    110,964x = 9,289,377,360.18
  5. Step 5: Solve for x
    x = 9,289,377,360.18/110,964
  6. Step 6: Final answer
    x = 83,715.24

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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.