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Finding the Fourth Proportional to 157,595.05, 217,476.86 and 85,975.05

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Solution

The fourth proportional to 157,595.05, 217,476.86 and 85,975.05 is: 118,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,595.05 : 217,476.86 = 85,975.05 : x
  2. Step 2: Convert to fraction form
    157,595.05/217,476.86 = 85,975.05/x
  3. Step 3: Cross multiply
    157,595.05x = 217,476.86 × 85,975.05
  4. Step 4: Simplify right side
    157,595.05x = 18,697,584,298.01
  5. Step 5: Solve for x
    x = 18,697,584,298.01/157,595.05
  6. Step 6: Final answer
    x = 118,643.22

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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.