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Finding the Fourth Proportional to 357,815.18, 536,518.64 and 147,202.22

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Solution

The fourth proportional to 357,815.18, 536,518.64 and 147,202.22 is: 220,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,815.18 : 536,518.64 = 147,202.22 : x
  2. Step 2: Convert to fraction form
    357,815.18/536,518.64 = 147,202.22/x
  3. Step 3: Cross multiply
    357,815.18x = 536,518.64 × 147,202.22
  4. Step 4: Simplify right side
    357,815.18x = 78,976,732,564.79
  5. Step 5: Solve for x
    x = 78,976,732,564.79/357,815.18
  6. Step 6: Final answer
    x = 220,719.35

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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.