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Finding the Fourth Proportional to 98,303.60, 147,456.22 and 60,972.32

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Solution

The fourth proportional to 98,303.60, 147,456.22 and 60,972.32 is: 91,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,303.60 : 147,456.22 = 60,972.32 : x
  2. Step 2: Convert to fraction form
    98,303.60/147,456.22 = 60,972.32/x
  3. Step 3: Cross multiply
    98,303.60x = 147,456.22 × 60,972.32
  4. Step 4: Simplify right side
    98,303.60x = 8,990,747,831.83
  5. Step 5: Solve for x
    x = 8,990,747,831.83/98,303.60
  6. Step 6: Final answer
    x = 91,458.99

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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.