Finding the Fourth Proportional to 98,053,221.98, 146,888,491.98 and 76,386,372.50
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Solution
The fourth proportional to 98,053,221.98, 146,888,491.98 and 76,386,372.50 is: 114,430,498.44
Step by Step Solution
- Step 1: Write the proportion equation
98,053,221.98 : 146,888,491.98 = 76,386,372.50 : x - Step 2: Convert to fraction form
98,053,221.98/146,888,491.98 = 76,386,372.50/x - Step 3: Cross multiply
98,053,221.98x = 146,888,491.98 × 76,386,372.50 - Step 4: Simplify right side
98,053,221.98x = 11,220,279,064,347,542 - Step 5: Solve for x
x = 11,220,279,064,347,542/98,053,221.98 - Step 6: Final answer
x = 114,430,498.44
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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.