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Finding the Fourth Proportional to 185,615.55, 278,423.33 and 185,615.55

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Solution

The fourth proportional to 185,615.55, 278,423.33 and 185,615.55 is: 278,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,615.55 : 278,423.33 = 185,615.55 : x
  2. Step 2: Convert to fraction form
    185,615.55/278,423.33 = 185,615.55/x
  3. Step 3: Cross multiply
    185,615.55x = 278,423.33 × 185,615.55
  4. Step 4: Simplify right side
    185,615.55x = 51,679,698,602.70
  5. Step 5: Solve for x
    x = 51,679,698,602.70/185,615.55
  6. Step 6: Final answer
    x = 278,423.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.