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Finding the Fourth Proportional to 155,643.80, 233,465.70 and 50,461.40

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Solution

The fourth proportional to 155,643.80, 233,465.70 and 50,461.40 is: 75,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,643.80 : 233,465.70 = 50,461.40 : x
  2. Step 2: Convert to fraction form
    155,643.80/233,465.70 = 50,461.40/x
  3. Step 3: Cross multiply
    155,643.80x = 233,465.70 × 50,461.40
  4. Step 4: Simplify right side
    155,643.80x = 11,781,006,073.98
  5. Step 5: Solve for x
    x = 11,781,006,073.98/155,643.80
  6. Step 6: Final answer
    x = 75,692.10

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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.