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Finding the Fourth Proportional to 266,866.76, 368,206.98 and 159,389.48

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Solution

The fourth proportional to 266,866.76, 368,206.98 and 159,389.48 is: 219,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,866.76 : 368,206.98 = 159,389.48 : x
  2. Step 2: Convert to fraction form
    266,866.76/368,206.98 = 159,389.48/x
  3. Step 3: Cross multiply
    266,866.76x = 368,206.98 × 159,389.48
  4. Step 4: Simplify right side
    266,866.76x = 58,688,319,074.57
  5. Step 5: Solve for x
    x = 58,688,319,074.57/266,866.76
  6. Step 6: Final answer
    x = 219,916.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.