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Finding the Fourth Proportional to 191,036.90, 286,555.35 and 171,353.90

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Solution

The fourth proportional to 191,036.90, 286,555.35 and 171,353.90 is: 257,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,036.90 : 286,555.35 = 171,353.90 : x
  2. Step 2: Convert to fraction form
    191,036.90/286,555.35 = 171,353.90/x
  3. Step 3: Cross multiply
    191,036.90x = 286,555.35 × 171,353.90
  4. Step 4: Simplify right side
    191,036.90x = 49,102,376,788.37
  5. Step 5: Solve for x
    x = 49,102,376,788.37/191,036.90
  6. Step 6: Final answer
    x = 257,030.85

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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.