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Finding the Fourth Proportional to 99,085.60, 148,628.40 and 63,656.20

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Solution

The fourth proportional to 99,085.60, 148,628.40 and 63,656.20 is: 95,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,085.60 : 148,628.40 = 63,656.20 : x
  2. Step 2: Convert to fraction form
    99,085.60/148,628.40 = 63,656.20/x
  3. Step 3: Cross multiply
    99,085.60x = 148,628.40 × 63,656.20
  4. Step 4: Simplify right side
    99,085.60x = 9,461,119,156.08
  5. Step 5: Solve for x
    x = 9,461,119,156.08/99,085.60
  6. Step 6: Final answer
    x = 95,484.30

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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.