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Finding the Fourth Proportional to 74,802.29, 112,202.46 and 21,495.51

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Solution

The fourth proportional to 74,802.29, 112,202.46 and 21,495.51 is: 32,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,802.29 : 112,202.46 = 21,495.51 : x
  2. Step 2: Convert to fraction form
    74,802.29/112,202.46 = 21,495.51/x
  3. Step 3: Cross multiply
    74,802.29x = 112,202.46 × 21,495.51
  4. Step 4: Simplify right side
    74,802.29x = 2,411,849,100.95
  5. Step 5: Solve for x
    x = 2,411,849,100.95/74,802.29
  6. Step 6: Final answer
    x = 32,242.99

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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.