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Finding the Fourth Proportional to 64,663,216.40, 96,994,824.60 and 53,184,090.80

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Solution

The fourth proportional to 64,663,216.40, 96,994,824.60 and 53,184,090.80 is: 79,776,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,663,216.40 : 96,994,824.60 = 53,184,090.80 : x
  2. Step 2: Convert to fraction form
    64,663,216.40/96,994,824.60 = 53,184,090.80/x
  3. Step 3: Cross multiply
    64,663,216.40x = 96,994,824.60 × 53,184,090.80
  4. Step 4: Simplify right side
    64,663,216.40x = 5,158,581,558,656,473
  5. Step 5: Solve for x
    x = 5,158,581,558,656,473/64,663,216.40
  6. Step 6: Final answer
    x = 79,776,136.20

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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.