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Finding the Fourth Proportional to 219,246.40, 328,869.60 and 94,587.40

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Solution

The fourth proportional to 219,246.40, 328,869.60 and 94,587.40 is: 141,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,246.40 : 328,869.60 = 94,587.40 : x
  2. Step 2: Convert to fraction form
    219,246.40/328,869.60 = 94,587.40/x
  3. Step 3: Cross multiply
    219,246.40x = 328,869.60 × 94,587.40
  4. Step 4: Simplify right side
    219,246.40x = 31,106,920,403.04
  5. Step 5: Solve for x
    x = 31,106,920,403.04/219,246.40
  6. Step 6: Final answer
    x = 141,881.10

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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.