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Finding the Fourth Proportional to 111,045.76, 153,242.88 and 60,744.64

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Solution

The fourth proportional to 111,045.76, 153,242.88 and 60,744.64 is: 83,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,045.76 : 153,242.88 = 60,744.64 : x
  2. Step 2: Convert to fraction form
    111,045.76/153,242.88 = 60,744.64/x
  3. Step 3: Cross multiply
    111,045.76x = 153,242.88 × 60,744.64
  4. Step 4: Simplify right side
    111,045.76x = 9,308,683,578.16
  5. Step 5: Solve for x
    x = 9,308,683,578.16/111,045.76
  6. Step 6: Final answer
    x = 83,827.46

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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.