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Finding the Fourth Proportional to 357,461.61, 536,192.16 and 91,222.20

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Solution

The fourth proportional to 357,461.61, 536,192.16 and 91,222.20 is: 136,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,461.61 : 536,192.16 = 91,222.20 : x
  2. Step 2: Convert to fraction form
    357,461.61/536,192.16 = 91,222.20/x
  3. Step 3: Cross multiply
    357,461.61x = 536,192.16 × 91,222.20
  4. Step 4: Simplify right side
    357,461.61x = 48,912,628,115.87
  5. Step 5: Solve for x
    x = 48,912,628,115.87/357,461.61
  6. Step 6: Final answer
    x = 136,833.24

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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.