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Finding the Fourth Proportional to 181,643.40, 272,465.10 and 160,907.40

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Solution

The fourth proportional to 181,643.40, 272,465.10 and 160,907.40 is: 241,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,643.40 : 272,465.10 = 160,907.40 : x
  2. Step 2: Convert to fraction form
    181,643.40/272,465.10 = 160,907.40/x
  3. Step 3: Cross multiply
    181,643.40x = 272,465.10 × 160,907.40
  4. Step 4: Simplify right side
    181,643.40x = 43,841,650,831.74
  5. Step 5: Solve for x
    x = 43,841,650,831.74/181,643.40
  6. Step 6: Final answer
    x = 241,361.10

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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.