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Finding the Fourth Proportional to 98,089.70, 146,925.71 and 74,133.35

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Solution

The fourth proportional to 98,089.70, 146,925.71 and 74,133.35 is: 111,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,089.70 : 146,925.71 = 74,133.35 : x
  2. Step 2: Convert to fraction form
    98,089.70/146,925.71 = 74,133.35/x
  3. Step 3: Cross multiply
    98,089.70x = 146,925.71 × 74,133.35
  4. Step 4: Simplify right side
    98,089.70x = 10,892,094,534.13
  5. Step 5: Solve for x
    x = 10,892,094,534.13/98,089.70
  6. Step 6: Final answer
    x = 111,042.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.