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Finding the Fourth Proportional to 208,985.69, 288,488.51 and 141,094.59

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Solution

The fourth proportional to 208,985.69, 288,488.51 and 141,094.59 is: 194,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,985.69 : 288,488.51 = 141,094.59 : x
  2. Step 2: Convert to fraction form
    208,985.69/288,488.51 = 141,094.59/x
  3. Step 3: Cross multiply
    208,985.69x = 288,488.51 × 141,094.59
  4. Step 4: Simplify right side
    208,985.69x = 40,704,167,332.69
  5. Step 5: Solve for x
    x = 40,704,167,332.69/208,985.69
  6. Step 6: Final answer
    x = 194,770.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.