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Finding the Fourth Proportional to 266,707.72, 368,056.64 and 145,849.10

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Solution

The fourth proportional to 266,707.72, 368,056.64 and 145,849.10 is: 201,271.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,707.72 : 368,056.64 = 145,849.10 : x
  2. Step 2: Convert to fraction form
    266,707.72/368,056.64 = 145,849.10/x
  3. Step 3: Cross multiply
    266,707.72x = 368,056.64 × 145,849.10
  4. Step 4: Simplify right side
    266,707.72x = 53,680,729,693.02
  5. Step 5: Solve for x
    x = 53,680,729,693.02/266,707.72
  6. Step 6: Final answer
    x = 201,271.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.