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Finding the Fourth Proportional to 351,973.65, 528,058.90 and 115,482.40

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Solution

The fourth proportional to 351,973.65, 528,058.90 and 115,482.40 is: 173,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,973.65 : 528,058.90 = 115,482.40 : x
  2. Step 2: Convert to fraction form
    351,973.65/528,058.90 = 115,482.40/x
  3. Step 3: Cross multiply
    351,973.65x = 528,058.90 × 115,482.40
  4. Step 4: Simplify right side
    351,973.65x = 60,981,509,113.36
  5. Step 5: Solve for x
    x = 60,981,509,113.36/351,973.65
  6. Step 6: Final answer
    x = 173,255.89

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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.