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Finding the Fourth Proportional to 153,087.84, 211,265.55 and 92,669.40

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Solution

The fourth proportional to 153,087.84, 211,265.55 and 92,669.40 is: 127,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,087.84 : 211,265.55 = 92,669.40 : x
  2. Step 2: Convert to fraction form
    153,087.84/211,265.55 = 92,669.40/x
  3. Step 3: Cross multiply
    153,087.84x = 211,265.55 × 92,669.40
  4. Step 4: Simplify right side
    153,087.84x = 19,577,851,759.17
  5. Step 5: Solve for x
    x = 19,577,851,759.17/153,087.84
  6. Step 6: Final answer
    x = 127,886.39

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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.