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Finding the Fourth Proportional to 97,210,978, 134,087,939.28 and 62,348,448.40

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Solution

The fourth proportional to 97,210,978, 134,087,939.28 and 62,348,448.40 is: 86,000,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,210,978 : 134,087,939.28 = 62,348,448.40 : x
  2. Step 2: Convert to fraction form
    97,210,978/134,087,939.28 = 62,348,448.40/x
  3. Step 3: Cross multiply
    97,210,978x = 134,087,939.28 × 62,348,448.40
  4. Step 4: Simplify right side
    97,210,978x = 8,360,174,963,261,413
  5. Step 5: Solve for x
    x = 8,360,174,963,261,413/97,210,978
  6. Step 6: Final answer
    x = 86,000,317.41

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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.