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Finding the Fourth Proportional to 116,283.60, 160,488.84 and 70,987.89

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Solution

The fourth proportional to 116,283.60, 160,488.84 and 70,987.89 is: 97,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,283.60 : 160,488.84 = 70,987.89 : x
  2. Step 2: Convert to fraction form
    116,283.60/160,488.84 = 70,987.89/x
  3. Step 3: Cross multiply
    116,283.60x = 160,488.84 × 70,987.89
  4. Step 4: Simplify right side
    116,283.60x = 11,392,764,988.19
  5. Step 5: Solve for x
    x = 11,392,764,988.19/116,283.60
  6. Step 6: Final answer
    x = 97,973.96

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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.