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Finding the Fourth Proportional to 199,573.04, 299,411.40 and 99,729.20

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Solution

The fourth proportional to 199,573.04, 299,411.40 and 99,729.20 is: 149,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,573.04 : 299,411.40 = 99,729.20 : x
  2. Step 2: Convert to fraction form
    199,573.04/299,411.40 = 99,729.20/x
  3. Step 3: Cross multiply
    199,573.04x = 299,411.40 × 99,729.20
  4. Step 4: Simplify right side
    199,573.04x = 29,860,057,895.82
  5. Step 5: Solve for x
    x = 29,860,057,895.82/199,573.04
  6. Step 6: Final answer
    x = 149,619.70

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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.