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Finding the Fourth Proportional to 277,011.54, 415,532.69 and 87,476.40

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Solution

The fourth proportional to 277,011.54, 415,532.69 and 87,476.40 is: 131,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,011.54 : 415,532.69 = 87,476.40 : x
  2. Step 2: Convert to fraction form
    277,011.54/415,532.69 = 87,476.40/x
  3. Step 3: Cross multiply
    277,011.54x = 415,532.69 × 87,476.40
  4. Step 4: Simplify right side
    277,011.54x = 36,349,303,803.52
  5. Step 5: Solve for x
    x = 36,349,303,803.52/277,011.54
  6. Step 6: Final answer
    x = 131,219.46

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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.