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Finding the Fourth Proportional to 98,616.30, 147,924.45 and 43,320.30

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Solution

The fourth proportional to 98,616.30, 147,924.45 and 43,320.30 is: 64,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.30 : 147,924.45 = 43,320.30 : x
  2. Step 2: Convert to fraction form
    98,616.30/147,924.45 = 43,320.30/x
  3. Step 3: Cross multiply
    98,616.30x = 147,924.45 × 43,320.30
  4. Step 4: Simplify right side
    98,616.30x = 6,408,131,551.34
  5. Step 5: Solve for x
    x = 6,408,131,551.34/98,616.30
  6. Step 6: Final answer
    x = 64,980.45

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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.