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Finding the Fourth Proportional to 288,047.40, 432,071.10 and 101,058.90

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Solution

The fourth proportional to 288,047.40, 432,071.10 and 101,058.90 is: 151,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,047.40 : 432,071.10 = 101,058.90 : x
  2. Step 2: Convert to fraction form
    288,047.40/432,071.10 = 101,058.90/x
  3. Step 3: Cross multiply
    288,047.40x = 432,071.10 × 101,058.90
  4. Step 4: Simplify right side
    288,047.40x = 43,664,630,087.79
  5. Step 5: Solve for x
    x = 43,664,630,087.79/288,047.40
  6. Step 6: Final answer
    x = 151,588.35

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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.