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Finding the Fourth Proportional to 139,968,218.55, 195,502,009.65 and 139,968,218.55

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Solution

The fourth proportional to 139,968,218.55, 195,502,009.65 and 139,968,218.55 is: 195,502,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,218.55 : 195,502,009.65 = 139,968,218.55 : x
  2. Step 2: Convert to fraction form
    139,968,218.55/195,502,009.65 = 139,968,218.55/x
  3. Step 3: Cross multiply
    139,968,218.55x = 195,502,009.65 × 139,968,218.55
  4. Step 4: Simplify right side
    139,968,218.55x = 27,364,068,013,655,412
  5. Step 5: Solve for x
    x = 27,364,068,013,655,412/139,968,218.55
  6. Step 6: Final answer
    x = 195,502,009.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.