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Finding the Fourth Proportional to 286,466.84, 429,279.66 and 144,116.45

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Solution

The fourth proportional to 286,466.84, 429,279.66 and 144,116.45 is: 215,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,466.84 : 429,279.66 = 144,116.45 : x
  2. Step 2: Convert to fraction form
    286,466.84/429,279.66 = 144,116.45/x
  3. Step 3: Cross multiply
    286,466.84x = 429,279.66 × 144,116.45
  4. Step 4: Simplify right side
    286,466.84x = 61,866,261,465.14
  5. Step 5: Solve for x
    x = 61,866,261,465.14/286,466.84
  6. Step 6: Final answer
    x = 215,963.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.