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Finding the Fourth Proportional to 358,211.20, 537,187.20 and 144,889.60

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Solution

The fourth proportional to 358,211.20, 537,187.20 and 144,889.60 is: 217,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,211.20 : 537,187.20 = 144,889.60 : x
  2. Step 2: Convert to fraction form
    358,211.20/537,187.20 = 144,889.60/x
  3. Step 3: Cross multiply
    358,211.20x = 537,187.20 × 144,889.60
  4. Step 4: Simplify right side
    358,211.20x = 77,832,838,533.12
  5. Step 5: Solve for x
    x = 77,832,838,533.12/358,211.20
  6. Step 6: Final answer
    x = 217,281.98

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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.