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Finding the Fourth Proportional to 118,017.85, 162,866.49 and 64,302.85

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Solution

The fourth proportional to 118,017.85, 162,866.49 and 64,302.85 is: 88,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,017.85 : 162,866.49 = 64,302.85 : x
  2. Step 2: Convert to fraction form
    118,017.85/162,866.49 = 64,302.85/x
  3. Step 3: Cross multiply
    118,017.85x = 162,866.49 × 64,302.85
  4. Step 4: Simplify right side
    118,017.85x = 10,472,779,476.50
  5. Step 5: Solve for x
    x = 10,472,779,476.50/118,017.85
  6. Step 6: Final answer
    x = 88,738.94

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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.