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Finding the Fourth Proportional to 64,958,724.52, 97,459,840.06 and 21,241,499.08

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Solution

The fourth proportional to 64,958,724.52, 97,459,840.06 and 21,241,499.08 is: 31,869,361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,958,724.52 : 97,459,840.06 = 21,241,499.08 : x
  2. Step 2: Convert to fraction form
    64,958,724.52/97,459,840.06 = 21,241,499.08/x
  3. Step 3: Cross multiply
    64,958,724.52x = 97,459,840.06 × 21,241,499.08
  4. Step 4: Simplify right side
    64,958,724.52x = 2,070,193,102,971,437
  5. Step 5: Solve for x
    x = 2,070,193,102,971,437/64,958,724.52
  6. Step 6: Final answer
    x = 31,869,361.94

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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.