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Finding the Fourth Proportional to 144,707.40, 217,061.10 and 65,975.40

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Solution

The fourth proportional to 144,707.40, 217,061.10 and 65,975.40 is: 98,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,707.40 : 217,061.10 = 65,975.40 : x
  2. Step 2: Convert to fraction form
    144,707.40/217,061.10 = 65,975.40/x
  3. Step 3: Cross multiply
    144,707.40x = 217,061.10 × 65,975.40
  4. Step 4: Simplify right side
    144,707.40x = 14,320,692,896.94
  5. Step 5: Solve for x
    x = 14,320,692,896.94/144,707.40
  6. Step 6: Final answer
    x = 98,963.10

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1.5x scale

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.