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Finding the Fourth Proportional to 471,482.50, 707,353.59 and 139,058.50

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Solution

The fourth proportional to 471,482.50, 707,353.59 and 139,058.50 is: 208,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,482.50 : 707,353.59 = 139,058.50 : x
  2. Step 2: Convert to fraction form
    471,482.50/707,353.59 = 139,058.50/x
  3. Step 3: Cross multiply
    471,482.50x = 707,353.59 × 139,058.50
  4. Step 4: Simplify right side
    471,482.50x = 98,363,529,195.02
  5. Step 5: Solve for x
    x = 98,363,529,195.02/471,482.50
  6. Step 6: Final answer
    x = 208,626.04

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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.