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Finding the Fourth Proportional to 118,167.68, 163,072.90 and 70,448.56

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Solution

The fourth proportional to 118,167.68, 163,072.90 and 70,448.56 is: 97,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,167.68 : 163,072.90 = 70,448.56 : x
  2. Step 2: Convert to fraction form
    118,167.68/163,072.90 = 70,448.56/x
  3. Step 3: Cross multiply
    118,167.68x = 163,072.90 × 70,448.56
  4. Step 4: Simplify right side
    118,167.68x = 11,488,250,980.02
  5. Step 5: Solve for x
    x = 11,488,250,980.02/118,167.68
  6. Step 6: Final answer
    x = 97,219.91

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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.