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Finding the Fourth Proportional to 346,688.50, 520,032.75 and 84,032.50

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Solution

The fourth proportional to 346,688.50, 520,032.75 and 84,032.50 is: 126,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,688.50 : 520,032.75 = 84,032.50 : x
  2. Step 2: Convert to fraction form
    346,688.50/520,032.75 = 84,032.50/x
  3. Step 3: Cross multiply
    346,688.50x = 520,032.75 × 84,032.50
  4. Step 4: Simplify right side
    346,688.50x = 43,699,652,064.38
  5. Step 5: Solve for x
    x = 43,699,652,064.38/346,688.50
  6. Step 6: Final answer
    x = 126,048.75

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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.