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Finding the Fourth Proportional to 252,647.73, 348,665.99 and 139,477.77

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Solution

The fourth proportional to 252,647.73, 348,665.99 and 139,477.77 is: 192,486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,647.73 : 348,665.99 = 139,477.77 : x
  2. Step 2: Convert to fraction form
    252,647.73/348,665.99 = 139,477.77/x
  3. Step 3: Cross multiply
    252,647.73x = 348,665.99 × 139,477.77
  4. Step 4: Simplify right side
    252,647.73x = 48,631,154,062.65
  5. Step 5: Solve for x
    x = 48,631,154,062.65/252,647.73
  6. Step 6: Final answer
    x = 192,486.01

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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.