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Finding the Fourth Proportional to 152,143.72, 228,228.72 and 39,823.48

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Solution

The fourth proportional to 152,143.72, 228,228.72 and 39,823.48 is: 59,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,143.72 : 228,228.72 = 39,823.48 : x
  2. Step 2: Convert to fraction form
    152,143.72/228,228.72 = 39,823.48/x
  3. Step 3: Cross multiply
    152,143.72x = 228,228.72 × 39,823.48
  4. Step 4: Simplify right side
    152,143.72x = 9,088,861,866.35
  5. Step 5: Solve for x
    x = 9,088,861,866.35/152,143.72
  6. Step 6: Final answer
    x = 59,738.66

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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.