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Finding the Fourth Proportional to 236,230.65, 325,999.80 and 128,802.47

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Solution

The fourth proportional to 236,230.65, 325,999.80 and 128,802.47 is: 177,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,230.65 : 325,999.80 = 128,802.47 : x
  2. Step 2: Convert to fraction form
    236,230.65/325,999.80 = 128,802.47/x
  3. Step 3: Cross multiply
    236,230.65x = 325,999.80 × 128,802.47
  4. Step 4: Simplify right side
    236,230.65x = 41,989,577,829.51
  5. Step 5: Solve for x
    x = 41,989,577,829.51/236,230.65
  6. Step 6: Final answer
    x = 177,748.22

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1.5x scale

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.