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Finding the Fourth Proportional to 169,421.70, 233,798.40 and 93,970.20

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Solution

The fourth proportional to 169,421.70, 233,798.40 and 93,970.20 is: 129,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,421.70 : 233,798.40 = 93,970.20 : x
  2. Step 2: Convert to fraction form
    169,421.70/233,798.40 = 93,970.20/x
  3. Step 3: Cross multiply
    169,421.70x = 233,798.40 × 93,970.20
  4. Step 4: Simplify right side
    169,421.70x = 21,970,082,407.68
  5. Step 5: Solve for x
    x = 21,970,082,407.68/169,421.70
  6. Step 6: Final answer
    x = 129,676.91

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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.