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Finding the Fourth Proportional to 207,666.70, 286,580.16 and 112,173.40

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Solution

The fourth proportional to 207,666.70, 286,580.16 and 112,173.40 is: 154,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,666.70 : 286,580.16 = 112,173.40 : x
  2. Step 2: Convert to fraction form
    207,666.70/286,580.16 = 112,173.40/x
  3. Step 3: Cross multiply
    207,666.70x = 286,580.16 × 112,173.40
  4. Step 4: Simplify right side
    207,666.70x = 32,146,670,945.19
  5. Step 5: Solve for x
    x = 32,146,670,945.19/207,666.70
  6. Step 6: Final answer
    x = 154,799.35

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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.