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Finding the Fourth Proportional to 170,415.92, 235,174.92 and 98,838.40

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Solution

The fourth proportional to 170,415.92, 235,174.92 and 98,838.40 is: 136,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,415.92 : 235,174.92 = 98,838.40 : x
  2. Step 2: Convert to fraction form
    170,415.92/235,174.92 = 98,838.40/x
  3. Step 3: Cross multiply
    170,415.92x = 235,174.92 × 98,838.40
  4. Step 4: Simplify right side
    170,415.92x = 23,244,312,812.93
  5. Step 5: Solve for x
    x = 23,244,312,812.93/170,415.92
  6. Step 6: Final answer
    x = 136,397.54

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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.