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Finding the Fourth Proportional to 517,762.44, 776,653.41 and 143,795.16

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Solution

The fourth proportional to 517,762.44, 776,653.41 and 143,795.16 is: 215,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,762.44 : 776,653.41 = 143,795.16 : x
  2. Step 2: Convert to fraction form
    517,762.44/776,653.41 = 143,795.16/x
  3. Step 3: Cross multiply
    517,762.44x = 776,653.41 × 143,795.16
  4. Step 4: Simplify right side
    517,762.44x = 111,679,001,355.50
  5. Step 5: Solve for x
    x = 111,679,001,355.50/517,762.44
  6. Step 6: Final answer
    x = 215,695.45

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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.