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Finding the Fourth Proportional to 213,681.68, 294,895.42 and 123,061.51

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Solution

The fourth proportional to 213,681.68, 294,895.42 and 123,061.51 is: 169,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,681.68 : 294,895.42 = 123,061.51 : x
  2. Step 2: Convert to fraction form
    213,681.68/294,895.42 = 123,061.51/x
  3. Step 3: Cross multiply
    213,681.68x = 294,895.42 × 123,061.51
  4. Step 4: Simplify right side
    213,681.68x = 36,290,273,587.50
  5. Step 5: Solve for x
    x = 36,290,273,587.50/213,681.68
  6. Step 6: Final answer
    x = 169,833.34

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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.