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Finding the Fourth Proportional to 161,798.63, 242,807.30 and 56,618.51

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Solution

The fourth proportional to 161,798.63, 242,807.30 and 56,618.51 is: 84,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,798.63 : 242,807.30 = 56,618.51 : x
  2. Step 2: Convert to fraction form
    161,798.63/242,807.30 = 56,618.51/x
  3. Step 3: Cross multiply
    161,798.63x = 242,807.30 × 56,618.51
  4. Step 4: Simplify right side
    161,798.63x = 13,747,387,543.12
  5. Step 5: Solve for x
    x = 13,747,387,543.12/161,798.63
  6. Step 6: Final answer
    x = 84,966.03

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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.