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Finding the Fourth Proportional to 131,598.40, 197,353.40 and 42,831.03

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Solution

The fourth proportional to 131,598.40, 197,353.40 and 42,831.03 is: 64,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,598.40 : 197,353.40 = 42,831.03 : x
  2. Step 2: Convert to fraction form
    131,598.40/197,353.40 = 42,831.03/x
  3. Step 3: Cross multiply
    131,598.40x = 197,353.40 × 42,831.03
  4. Step 4: Simplify right side
    131,598.40x = 8,452,849,422.77
  5. Step 5: Solve for x
    x = 8,452,849,422.77/131,598.40
  6. Step 6: Final answer
    x = 64,232.16

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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.