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Finding the Fourth Proportional to 46,803,603.40, 70,205,405.10 and 21,294,435.40

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Solution

The fourth proportional to 46,803,603.40, 70,205,405.10 and 21,294,435.40 is: 31,941,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,803,603.40 : 70,205,405.10 = 21,294,435.40 : x
  2. Step 2: Convert to fraction form
    46,803,603.40/70,205,405.10 = 21,294,435.40/x
  3. Step 3: Cross multiply
    46,803,603.40x = 70,205,405.10 × 21,294,435.40
  4. Step 4: Simplify right side
    46,803,603.40x = 1,494,984,463,632,780.25
  5. Step 5: Solve for x
    x = 1,494,984,463,632,780.25/46,803,603.40
  6. Step 6: Final answer
    x = 31,941,653.10

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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.