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Finding the Fourth Proportional to 199,634.63, 299,189.50 and 98,488.31

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Solution

The fourth proportional to 199,634.63, 299,189.50 and 98,488.31 is: 147,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,634.63 : 299,189.50 = 98,488.31 : x
  2. Step 2: Convert to fraction form
    199,634.63/299,189.50 = 98,488.31/x
  3. Step 3: Cross multiply
    199,634.63x = 299,189.50 × 98,488.31
  4. Step 4: Simplify right side
    199,634.63x = 29,466,666,482.58
  5. Step 5: Solve for x
    x = 29,466,666,482.58/199,634.63
  6. Step 6: Final answer
    x = 147,602.98

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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.