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Finding the Fourth Proportional to 53,136,017.20, 79,578,054.60 and 53,136,017.20

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Solution

The fourth proportional to 53,136,017.20, 79,578,054.60 and 53,136,017.20 is: 79,578,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,136,017.20 : 79,578,054.60 = 53,136,017.20 : x
  2. Step 2: Convert to fraction form
    53,136,017.20/79,578,054.60 = 53,136,017.20/x
  3. Step 3: Cross multiply
    53,136,017.20x = 79,578,054.60 × 53,136,017.20
  4. Step 4: Simplify right side
    53,136,017.20x = 4,228,460,877,968,139
  5. Step 5: Solve for x
    x = 4,228,460,877,968,139/53,136,017.20
  6. Step 6: Final answer
    x = 79,578,054.60

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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.