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Finding the Fourth Proportional to 208,005.63, 312,008.41 and 58,268.08

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Solution

The fourth proportional to 208,005.63, 312,008.41 and 58,268.08 is: 87,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,005.63 : 312,008.41 = 58,268.08 : x
  2. Step 2: Convert to fraction form
    208,005.63/312,008.41 = 58,268.08/x
  3. Step 3: Cross multiply
    208,005.63x = 312,008.41 × 58,268.08
  4. Step 4: Simplify right side
    208,005.63x = 18,180,130,994.55
  5. Step 5: Solve for x
    x = 18,180,130,994.55/208,005.63
  6. Step 6: Final answer
    x = 87,402.11

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1.5x scale

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.