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Finding the Fourth Proportional to 130,424.90, 195,637.36 and 60,440.90

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Solution

The fourth proportional to 130,424.90, 195,637.36 and 60,440.90 is: 90,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,424.90 : 195,637.36 = 60,440.90 : x
  2. Step 2: Convert to fraction form
    130,424.90/195,637.36 = 60,440.90/x
  3. Step 3: Cross multiply
    130,424.90x = 195,637.36 × 60,440.90
  4. Step 4: Simplify right side
    130,424.90x = 11,824,498,112.02
  5. Step 5: Solve for x
    x = 11,824,498,112.02/130,424.90
  6. Step 6: Final answer
    x = 90,661.35

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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.