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Finding the Fourth Proportional to 358,386.60, 537,520.98 and 133,688.28

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Solution

The fourth proportional to 358,386.60, 537,520.98 and 133,688.28 is: 200,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,386.60 : 537,520.98 = 133,688.28 : x
  2. Step 2: Convert to fraction form
    358,386.60/537,520.98 = 133,688.28/x
  3. Step 3: Cross multiply
    358,386.60x = 537,520.98 × 133,688.28
  4. Step 4: Simplify right side
    358,386.60x = 71,860,255,280.11
  5. Step 5: Solve for x
    x = 71,860,255,280.11/358,386.60
  6. Step 6: Final answer
    x = 200,510.44

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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.