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Finding the Fourth Proportional to 191,648.10, 287,527.65 and 79,307.58

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Solution

The fourth proportional to 191,648.10, 287,527.65 and 79,307.58 is: 118,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,648.10 : 287,527.65 = 79,307.58 : x
  2. Step 2: Convert to fraction form
    191,648.10/287,527.65 = 79,307.58/x
  3. Step 3: Cross multiply
    191,648.10x = 287,527.65 × 79,307.58
  4. Step 4: Simplify right side
    191,648.10x = 22,803,122,104.59
  5. Step 5: Solve for x
    x = 22,803,122,104.59/191,648.10
  6. Step 6: Final answer
    x = 118,984.34

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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.