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Finding the Fourth Proportional to 191,134.20, 286,628.40 and 57,970.20

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Solution

The fourth proportional to 191,134.20, 286,628.40 and 57,970.20 is: 86,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,134.20 : 286,628.40 = 57,970.20 : x
  2. Step 2: Convert to fraction form
    191,134.20/286,628.40 = 57,970.20/x
  3. Step 3: Cross multiply
    191,134.20x = 286,628.40 × 57,970.20
  4. Step 4: Simplify right side
    191,134.20x = 16,615,905,673.68
  5. Step 5: Solve for x
    x = 16,615,905,673.68/191,134.20
  6. Step 6: Final answer
    x = 86,933.19

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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.