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Finding the Fourth Proportional to 340,031.62, 469,243.63 and 187,066.52

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Solution

The fourth proportional to 340,031.62, 469,243.63 and 187,066.52 is: 258,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,031.62 : 469,243.63 = 187,066.52 : x
  2. Step 2: Convert to fraction form
    340,031.62/469,243.63 = 187,066.52/x
  3. Step 3: Cross multiply
    340,031.62x = 469,243.63 × 187,066.52
  4. Step 4: Simplify right side
    340,031.62x = 87,779,771,960.94
  5. Step 5: Solve for x
    x = 87,779,771,960.94/340,031.62
  6. Step 6: Final answer
    x = 258,151.80

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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.