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Finding the Fourth Proportional to 97,880.60, 137,125 and 97,880.60

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Solution

The fourth proportional to 97,880.60, 137,125 and 97,880.60 is: 137,125

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,880.60 : 137,125 = 97,880.60 : x
  2. Step 2: Convert to fraction form
    97,880.60/137,125 = 97,880.60/x
  3. Step 3: Cross multiply
    97,880.60x = 137,125 × 97,880.60
  4. Step 4: Simplify right side
    97,880.60x = 13,421,877,275
  5. Step 5: Solve for x
    x = 13,421,877,275/97,880.60
  6. Step 6: Final answer
    x = 137,125

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.