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Finding the Fourth Proportional to 476,695.02, 715,041.90 and 121,709.10

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Solution

The fourth proportional to 476,695.02, 715,041.90 and 121,709.10 is: 182,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,695.02 : 715,041.90 = 121,709.10 : x
  2. Step 2: Convert to fraction form
    476,695.02/715,041.90 = 121,709.10/x
  3. Step 3: Cross multiply
    476,695.02x = 715,041.90 × 121,709.10
  4. Step 4: Simplify right side
    476,695.02x = 87,027,106,111.29
  5. Step 5: Solve for x
    x = 87,027,106,111.29/476,695.02
  6. Step 6: Final answer
    x = 182,563.49

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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.