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Finding the Fourth Proportional to 216,613.05, 299,001.21 and 148,854.33

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Solution

The fourth proportional to 216,613.05, 299,001.21 and 148,854.33 is: 205,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,613.05 : 299,001.21 = 148,854.33 : x
  2. Step 2: Convert to fraction form
    216,613.05/299,001.21 = 148,854.33/x
  3. Step 3: Cross multiply
    216,613.05x = 299,001.21 × 148,854.33
  4. Step 4: Simplify right side
    216,613.05x = 44,507,624,783.74
  5. Step 5: Solve for x
    x = 44,507,624,783.74/216,613.05
  6. Step 6: Final answer
    x = 205,470.65

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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.