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Finding the Fourth Proportional to 191,266.80, 288,332.70 and 178,421.82

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Solution

The fourth proportional to 191,266.80, 288,332.70 and 178,421.82 is: 268,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,266.80 : 288,332.70 = 178,421.82 : x
  2. Step 2: Convert to fraction form
    191,266.80/288,332.70 = 178,421.82/x
  3. Step 3: Cross multiply
    191,266.80x = 288,332.70 × 178,421.82
  4. Step 4: Simplify right side
    191,266.80x = 51,444,845,099.51
  5. Step 5: Solve for x
    x = 51,444,845,099.51/191,266.80
  6. Step 6: Final answer
    x = 268,969.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.