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Finding the Fourth Proportional to 294,703.40, 442,055.10 and 73,087.40

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Solution

The fourth proportional to 294,703.40, 442,055.10 and 73,087.40 is: 109,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,703.40 : 442,055.10 = 73,087.40 : x
  2. Step 2: Convert to fraction form
    294,703.40/442,055.10 = 73,087.40/x
  3. Step 3: Cross multiply
    294,703.40x = 442,055.10 × 73,087.40
  4. Step 4: Simplify right side
    294,703.40x = 32,308,657,915.74
  5. Step 5: Solve for x
    x = 32,308,657,915.74/294,703.40
  6. Step 6: Final answer
    x = 109,631.10

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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.