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Finding the Fourth Proportional to 224,521.60, 336,829.20 and 74,808.40

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Solution

The fourth proportional to 224,521.60, 336,829.20 and 74,808.40 is: 112,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,521.60 : 336,829.20 = 74,808.40 : x
  2. Step 2: Convert to fraction form
    224,521.60/336,829.20 = 74,808.40/x
  3. Step 3: Cross multiply
    224,521.60x = 336,829.20 × 74,808.40
  4. Step 4: Simplify right side
    224,521.60x = 25,197,653,525.28
  5. Step 5: Solve for x
    x = 25,197,653,525.28/224,521.60
  6. Step 6: Final answer
    x = 112,228.19

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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.