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Finding the Fourth Proportional to 147,314.40, 221,048.40 and 64,216.80

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Solution

The fourth proportional to 147,314.40, 221,048.40 and 64,216.80 is: 96,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,314.40 : 221,048.40 = 64,216.80 : x
  2. Step 2: Convert to fraction form
    147,314.40/221,048.40 = 64,216.80/x
  3. Step 3: Cross multiply
    147,314.40x = 221,048.40 × 64,216.80
  4. Step 4: Simplify right side
    147,314.40x = 14,195,020,893.12
  5. Step 5: Solve for x
    x = 14,195,020,893.12/147,314.40
  6. Step 6: Final answer
    x = 96,358.68

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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.