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Finding the Fourth Proportional to 215,567.01, 297,491.65 and 120,073.75

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Solution

The fourth proportional to 215,567.01, 297,491.65 and 120,073.75 is: 165,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,567.01 : 297,491.65 = 120,073.75 : x
  2. Step 2: Convert to fraction form
    215,567.01/297,491.65 = 120,073.75/x
  3. Step 3: Cross multiply
    215,567.01x = 297,491.65 × 120,073.75
  4. Step 4: Simplify right side
    215,567.01x = 35,720,938,009.19
  5. Step 5: Solve for x
    x = 35,720,938,009.19/215,567.01
  6. Step 6: Final answer
    x = 165,706.89

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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.