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Finding the Fourth Proportional to 374,555.40, 562,232.88 and 161,428.47

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Solution

The fourth proportional to 374,555.40, 562,232.88 and 161,428.47 is: 242,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,555.40 : 562,232.88 = 161,428.47 : x
  2. Step 2: Convert to fraction form
    374,555.40/562,232.88 = 161,428.47/x
  3. Step 3: Cross multiply
    374,555.40x = 562,232.88 × 161,428.47
  4. Step 4: Simplify right side
    374,555.40x = 90,760,393,602.09
  5. Step 5: Solve for x
    x = 90,760,393,602.09/374,555.40
  6. Step 6: Final answer
    x = 242,315.00

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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.