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Finding the Fourth Proportional to 369,101.80, 553,181.82 and 191,264.68

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Solution

The fourth proportional to 369,101.80, 553,181.82 and 191,264.68 is: 286,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,101.80 : 553,181.82 = 191,264.68 : x
  2. Step 2: Convert to fraction form
    369,101.80/553,181.82 = 191,264.68/x
  3. Step 3: Cross multiply
    369,101.80x = 553,181.82 × 191,264.68
  4. Step 4: Simplify right side
    369,101.80x = 105,804,143,784.12
  5. Step 5: Solve for x
    x = 105,804,143,784.12/369,101.80
  6. Step 6: Final answer
    x = 286,653.01

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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.