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Finding the Fourth Proportional to 191,322.60, 286,988.63 and 91,493.34

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Solution

The fourth proportional to 191,322.60, 286,988.63 and 91,493.34 is: 137,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,322.60 : 286,988.63 = 91,493.34 : x
  2. Step 2: Convert to fraction form
    191,322.60/286,988.63 = 91,493.34/x
  3. Step 3: Cross multiply
    191,322.60x = 286,988.63 × 91,493.34
  4. Step 4: Simplify right side
    191,322.60x = 26,257,547,843.26
  5. Step 5: Solve for x
    x = 26,257,547,843.26/191,322.60
  6. Step 6: Final answer
    x = 137,242.27

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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.