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Finding the Fourth Proportional to 114,701.40, 172,052.10 and 30,461.40

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Solution

The fourth proportional to 114,701.40, 172,052.10 and 30,461.40 is: 45,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,701.40 : 172,052.10 = 30,461.40 : x
  2. Step 2: Convert to fraction form
    114,701.40/172,052.10 = 30,461.40/x
  3. Step 3: Cross multiply
    114,701.40x = 172,052.10 × 30,461.40
  4. Step 4: Simplify right side
    114,701.40x = 5,240,947,838.94
  5. Step 5: Solve for x
    x = 5,240,947,838.94/114,701.40
  6. Step 6: Final answer
    x = 45,692.10

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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.