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Finding the Fourth Proportional to 291,468.48, 437,088.08 and 141,664.88

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Solution

The fourth proportional to 291,468.48, 437,088.08 and 141,664.88 is: 212,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,468.48 : 437,088.08 = 141,664.88 : x
  2. Step 2: Convert to fraction form
    291,468.48/437,088.08 = 141,664.88/x
  3. Step 3: Cross multiply
    291,468.48x = 437,088.08 × 141,664.88
  4. Step 4: Simplify right side
    291,468.48x = 61,920,030,402.63
  5. Step 5: Solve for x
    x = 61,920,030,402.63/291,468.48
  6. Step 6: Final answer
    x = 212,441.60

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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.