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Finding the Fourth Proportional to 170,140.62, 234,807.62 and 98,521.91

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Solution

The fourth proportional to 170,140.62, 234,807.62 and 98,521.91 is: 135,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,140.62 : 234,807.62 = 98,521.91 : x
  2. Step 2: Convert to fraction form
    170,140.62/234,807.62 = 98,521.91/x
  3. Step 3: Cross multiply
    170,140.62x = 234,807.62 × 98,521.91
  4. Step 4: Simplify right side
    170,140.62x = 23,133,693,538.31
  5. Step 5: Solve for x
    x = 23,133,693,538.31/170,140.62
  6. Step 6: Final answer
    x = 135,968.08

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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.