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Finding the Fourth Proportional to 154,107.04, 212,666.08 and 97,564.80

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Solution

The fourth proportional to 154,107.04, 212,666.08 and 97,564.80 is: 134,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,107.04 : 212,666.08 = 97,564.80 : x
  2. Step 2: Convert to fraction form
    154,107.04/212,666.08 = 97,564.80/x
  3. Step 3: Cross multiply
    154,107.04x = 212,666.08 × 97,564.80
  4. Step 4: Simplify right side
    154,107.04x = 20,748,723,561.98
  5. Step 5: Solve for x
    x = 20,748,723,561.98/154,107.04
  6. Step 6: Final answer
    x = 134,638.39

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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.