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Finding the Fourth Proportional to 252,607.72, 348,596.76 and 139,430.44

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Solution

The fourth proportional to 252,607.72, 348,596.76 and 139,430.44 is: 192,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,607.72 : 348,596.76 = 139,430.44 : x
  2. Step 2: Convert to fraction form
    252,607.72/348,596.76 = 139,430.44/x
  3. Step 3: Cross multiply
    252,607.72x = 348,596.76 × 139,430.44
  4. Step 4: Simplify right side
    252,607.72x = 48,604,999,629.37
  5. Step 5: Solve for x
    x = 48,604,999,629.37/252,607.72
  6. Step 6: Final answer
    x = 192,412.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.