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Finding the Fourth Proportional to 319,323.29, 440,669.63 and 176,088.47

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Solution

The fourth proportional to 319,323.29, 440,669.63 and 176,088.47 is: 243,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,323.29 : 440,669.63 = 176,088.47 : x
  2. Step 2: Convert to fraction form
    319,323.29/440,669.63 = 176,088.47/x
  3. Step 3: Cross multiply
    319,323.29x = 440,669.63 × 176,088.47
  4. Step 4: Simplify right side
    319,323.29x = 77,596,840,041.72
  5. Step 5: Solve for x
    x = 77,596,840,041.72/319,323.29
  6. Step 6: Final answer
    x = 243,004.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.