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Finding the Fourth Proportional to 153,884.84, 212,364.63 and 96,526.58

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Solution

The fourth proportional to 153,884.84, 212,364.63 and 96,526.58 is: 133,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,884.84 : 212,364.63 = 96,526.58 : x
  2. Step 2: Convert to fraction form
    153,884.84/212,364.63 = 96,526.58/x
  3. Step 3: Cross multiply
    153,884.84x = 212,364.63 × 96,526.58
  4. Step 4: Simplify right side
    153,884.84x = 20,498,830,385.04
  5. Step 5: Solve for x
    x = 20,498,830,385.04/153,884.84
  6. Step 6: Final answer
    x = 133,208.91

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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.