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Finding the Fourth Proportional to 98,859.20, 148,288.80 and 97,822.40

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Solution

The fourth proportional to 98,859.20, 148,288.80 and 97,822.40 is: 146,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,859.20 : 148,288.80 = 97,822.40 : x
  2. Step 2: Convert to fraction form
    98,859.20/148,288.80 = 97,822.40/x
  3. Step 3: Cross multiply
    98,859.20x = 148,288.80 × 97,822.40
  4. Step 4: Simplify right side
    98,859.20x = 14,505,966,309.12
  5. Step 5: Solve for x
    x = 14,505,966,309.12/98,859.20
  6. Step 6: Final answer
    x = 146,733.60

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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.