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Finding the Fourth Proportional to 191,009.40, 286,514.10 and 174,679.80

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Solution

The fourth proportional to 191,009.40, 286,514.10 and 174,679.80 is: 262,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.40 : 286,514.10 = 174,679.80 : x
  2. Step 2: Convert to fraction form
    191,009.40/286,514.10 = 174,679.80/x
  3. Step 3: Cross multiply
    191,009.40x = 286,514.10 × 174,679.80
  4. Step 4: Simplify right side
    191,009.40x = 50,048,225,685.18
  5. Step 5: Solve for x
    x = 50,048,225,685.18/191,009.40
  6. Step 6: Final answer
    x = 262,019.70

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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.