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Finding the Fourth Proportional to 66,528,074.45, 99,792,111.68 and 66,528,074.45

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Solution

The fourth proportional to 66,528,074.45, 99,792,111.68 and 66,528,074.45 is: 99,792,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,074.45 : 99,792,111.68 = 66,528,074.45 : x
  2. Step 2: Convert to fraction form
    66,528,074.45/99,792,111.68 = 66,528,074.45/x
  3. Step 3: Cross multiply
    66,528,074.45x = 99,792,111.68 × 66,528,074.45
  4. Step 4: Simplify right side
    66,528,074.45x = 6,638,977,035,369,755
  5. Step 5: Solve for x
    x = 6,638,977,035,369,755/66,528,074.45
  6. Step 6: Final answer
    x = 99,792,111.68

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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.