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Finding the Fourth Proportional to 243,931.70, 365,897.55 and 160,220.90

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Solution

The fourth proportional to 243,931.70, 365,897.55 and 160,220.90 is: 240,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,931.70 : 365,897.55 = 160,220.90 : x
  2. Step 2: Convert to fraction form
    243,931.70/365,897.55 = 160,220.90/x
  3. Step 3: Cross multiply
    243,931.70x = 365,897.55 × 160,220.90
  4. Step 4: Simplify right side
    243,931.70x = 58,624,434,768.80
  5. Step 5: Solve for x
    x = 58,624,434,768.80/243,931.70
  6. Step 6: Final answer
    x = 240,331.35

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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.