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Finding the Fourth Proportional to 152,394.52, 210,304.20 and 85,326.52

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Solution

The fourth proportional to 152,394.52, 210,304.20 and 85,326.52 is: 117,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,394.52 : 210,304.20 = 85,326.52 : x
  2. Step 2: Convert to fraction form
    152,394.52/210,304.20 = 85,326.52/x
  3. Step 3: Cross multiply
    152,394.52x = 210,304.20 × 85,326.52
  4. Step 4: Simplify right side
    152,394.52x = 17,944,525,527.38
  5. Step 5: Solve for x
    x = 17,944,525,527.38/152,394.52
  6. Step 6: Final answer
    x = 117,750.46

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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.