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Finding the Fourth Proportional to 207,710.34, 286,452.09 and 136,064.22

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Solution

The fourth proportional to 207,710.34, 286,452.09 and 136,064.22 is: 187,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,710.34 : 286,452.09 = 136,064.22 : x
  2. Step 2: Convert to fraction form
    207,710.34/286,452.09 = 136,064.22/x
  3. Step 3: Cross multiply
    207,710.34x = 286,452.09 × 136,064.22
  4. Step 4: Simplify right side
    207,710.34x = 38,975,880,193.22
  5. Step 5: Solve for x
    x = 38,975,880,193.22/207,710.34
  6. Step 6: Final answer
    x = 187,645.35

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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.