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Finding the Fourth Proportional to 194,430.80, 291,646.20 and 166,437.20

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Solution

The fourth proportional to 194,430.80, 291,646.20 and 166,437.20 is: 249,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,430.80 : 291,646.20 = 166,437.20 : x
  2. Step 2: Convert to fraction form
    194,430.80/291,646.20 = 166,437.20/x
  3. Step 3: Cross multiply
    194,430.80x = 291,646.20 × 166,437.20
  4. Step 4: Simplify right side
    194,430.80x = 48,540,776,918.64
  5. Step 5: Solve for x
    x = 48,540,776,918.64/194,430.80
  6. Step 6: Final answer
    x = 249,655.80

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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.