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Finding the Fourth Proportional to 98,816.64, 148,180.24 and 42,630.24

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Solution

The fourth proportional to 98,816.64, 148,180.24 and 42,630.24 is: 63,926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,816.64 : 148,180.24 = 42,630.24 : x
  2. Step 2: Convert to fraction form
    98,816.64/148,180.24 = 42,630.24/x
  3. Step 3: Cross multiply
    98,816.64x = 148,180.24 × 42,630.24
  4. Step 4: Simplify right side
    98,816.64x = 6,316,959,194.46
  5. Step 5: Solve for x
    x = 6,316,959,194.46/98,816.64
  6. Step 6: Final answer
    x = 63,926.07

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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.